Answer:
the first question answer is C and for the second one is D
Answer:
- In claustrophobic laboratory a dog is forced to breathe tobacco smoke.
- In another lab, a rat is squeezed into a narrow glass tube and forced to breathe in tobacco smoke.
Both of these sentences hook to draw the reader's attention.
These are such cruel acts done by scientists, action shall be taken against such insane work. Tobacco is so damaging to humans, then just imagine its consequences on these poor animals. Bioethics rules shall be kept in mind before doing such cruel acts.
Answer:
an ecosystem consists of a population of organism and it's physical environment,and a population is made up many different communities of organism.
The answer is true.
All of them bunched together is called a community
